<template>
  <!-- 底部部分 -->
  <footer class="footer">
    <span class="todo-count"><strong>{{list.length}}</strong>剩余</span>
    <ul class="filters" @click="pick">
      <li>
        <a @click="type='all'" :class="{selected:type==='all'}" href="#/">全部</a>
      </li>
      <li>
        <a @click="type='yes'" :class="{selected:type==='yes'}"  href="#/active">进行中</a>
      </li>
      <li>
        <a @click="type='on'" :class="{selected:type==='on'}"  href="#/completed">已完成</a>
      </li>
    </ul>
    <button v-show="clearshow" @click="clear" class="clear-completed">清除已完成</button>
  </footer>
</template>

<script>
export default {
  props: {
    list: {
      type: Array,
      required: true,
    },
  },
  data (){
    return {
      type:'all'
    }
  },
  methods: {
    clear() {
      this.$emit("hclear");
    },
    pick(){
      this.$emit('hpick',this.type)
    }
  },
  computed: {
    clearshow() {
      return this.list.some(itme=>itme.isDone)
    },
  },
};
</script>

<style>
</style>